समाकल \(\displaystyle\int_0^{2\pi}\left(\dfrac{3}{9+\sin^2 \theta }\right)d\theta \) का मान है:

1
\(\dfrac{2\pi}{\sqrt{10}}\)
2
\(2\sqrt{10} \pi\)
3
\(\sqrt{10} \pi\)
4
π

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